CountDownTimer timer = new CountDownTimer(djsTimeMillis, 1000) {
            @Override
            public void onTick(long millisUntilFinished) {
                loadTime(millisUntilFinished);
            }

            //结束 计时
            @Override
            public void onFinish() {
                initLoanDetail();
                noticeDtailParentUpdate(loanStatus);
            }
        };
        timer.start();
		
		
		  /**
     * 加载倒计时间
     *
     * @param millisUntilFinished
     */
    private void loadTime(long millisUntilFinished) {
        //相差总秒数
        long second = millisUntilFinished / 1000;
        //相差总分数
        long minute = second / 60;
        long hours = minute / 60;
        //相差总天数
        days = hours / 24;
        //计算倒计时中的小时数 分数 秒数
        syHours = hours - days * 24;
        syMintes = minute - hours * 60;
        sySeconds = second - minute * 60;
        if (days != 0) {
            tv_countDown.setText(days + "天" + syHours + "时" + syMintes + "分" + sySeconds + "秒");
        } else {
            if (syHours != 0) {
                tv_countDown.setText(syHours + "时" + syMintes + "分" + sySeconds + "秒");
            } else {
                if (syMintes != 0) {
                    tv_countDown.setText(syMintes + "分" + sySeconds + "秒");
                } else {
                    if (sySeconds >= 0) {
                        tv_countDown.setText(sySeconds + "秒");
                    }
                }
            }
        }
    }